/* Copyright Statement:
*
* This software/firmware and related documentation ("MediaTek Software") are
* protected under relevant copyright laws. The information contained herein
* is confidential and proprietary to MediaTek Inc. and/or its licensors.
* Without the prior written permission of MediaTek inc. and/or its licensors,
* any reproduction, modification, use or disclosure of MediaTek Software,
* and information contained herein, in whole or in part, shall be strictly prohibited.
*/
/* MediaTek Inc. (C) 2015. All rights reserved.
*
* BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
* THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MEDIATEK SOFTWARE")
* RECEIVED FROM MEDIATEK AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER ON
* AN "AS-IS" BASIS ONLY. MEDIATEK EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT.
* NEITHER DOES MEDIATEK PROVIDE ANY WARRANTY WHATSOEVER WITH RESPECT TO THE
* SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY, INCORPORATED IN, OR
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* CONTAINED IN MEDIATEK SOFTWARE. MEDIATEK SHALL ALSO NOT BE RESPONSIBLE FOR ANY MEDIATEK
* SOFTWARE RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
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* AT MEDIATEK'S OPTION, TO REVISE OR REPLACE THE MEDIATEK SOFTWARE AT ISSUE,
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* MEDIATEK FOR SUCH MEDIATEK SOFTWARE AT ISSUE.
*
* The following software/firmware and/or related documentation ("MediaTek Software")
* have been modified by MediaTek Inc. All revisions are subject to any receiver\'s
* applicable license agreements with MediaTek Inc.
*/
#include "lcm_drv.h"

// ---------------------------------------------------------------------------
//  Local Constants
// ---------------------------------------------------------------------------

#define FRAME_WIDTH                                         (720)
#define FRAME_HEIGHT                                        (1280)

#define REGFLAG_DELAY                                       0xFE
#define REGFLAG_END_OF_TABLE                                0xFF   // END OF REGISTERS MARKER

#define LCM_DSI_CMD_MODE                                    1

// ---------------------------------------------------------------------------
//  Local Variables
// ---------------------------------------------------------------------------

static LCM_UTIL_FUNCS lcm_util = {0};

#define SET_RESET_PIN(v)    (lcm_util.set_reset_pin((v)))

#define UDELAY(n) (lcm_util.udelay(n))
#define MDELAY(n) (lcm_util.mdelay(n))


// ---------------------------------------------------------------------------
//  Local Functions
// ---------------------------------------------------------------------------

#define dsi_set_cmdq_V2(cmd, count, ppara, force_update)    lcm_util.dsi_set_cmdq_V2(cmd, count, ppara, force_update)
#define dsi_set_cmdq(pdata, queue_size, force_update)       lcm_util.dsi_set_cmdq(pdata, queue_size, force_update)
#define wrtie_cmd(cmd)                                  lcm_util.dsi_write_cmd(cmd)
#define write_regs(addr, pdata, byte_nums)              lcm_util.dsi_write_regs(addr, pdata, byte_nums)
#define read_reg                                            lcm_util.dsi_read_reg()


static struct LCM_setting_table {
	unsigned cmd;
	unsigned char count;
	unsigned char para_list[64];
};


static struct LCM_setting_table lcm_initialization_setting[] = {

	/*
	Note :

	Data ID will depends on the following rule.

	    count of parameters > 1 => Data ID = 0x39
	    count of parameters = 1 => Data ID = 0x15
	    count of parameters = 0 => Data ID = 0x05

	Structure Format :

	{DCS command, count of parameters, {parameter list}}
	{REGFLAG_DELAY, milliseconds of time, {}},

	...

	Setting ending by predefined flag

	{REGFLAG_END_OF_TABLE, 0x00, {}}
	*/

	//sleep out
	{0x11, 0, {}},
	{REGFLAG_DELAY, 120, {}},

	//SET PASSWORD
	{0xB9, 3, {0xFF,0x83,0x92}},
	{REGFLAG_DELAY, 10, {}},

	//Set internal oscillator
	{0xB0, 2, {0x01,0x08}},

	//set mipi 3 lane
	{
		0xBA, 17, {
			0x52, 0x83, 0x00, 0xD6,
			0xC5, 0x10, 0x09, 0xFF,
			0x0F, 0x27, 0x03, 0x21,
			0x27, 0x25, 0x20, 0x00,
			0x10
		}
	},

	//SET POWER
	{
		0xB1, 13, {
			0x7C, 0x00, 0x43, 0xBB,
			0x00, 0x1A, 0x1A, 0x2F,
			0x36, 0x3F, 0x3F, 0x42,
			0x7A
		}
	},

	//SET DISPLAY RELATED REGISTER
	{
		0xB2, 12, {
			0x08,0xC8,0x06,0x18,
			0x04,0x84,0x00,0xFF,
			0x06,0x06,0x04,0x20
		}
	},

	//SET CYC
	{
		0xB4, 23, {
			0x00, 0x00, 0x05, 0x0A,
			0x8F, 0x06, 0x0A, 0x95,
			0x01, 0x07, 0x06, 0x0C,
			0x02, 0x08, 0x08, 0x21,
			0x04, 0x02, 0x08, 0x01,
			0x04, 0x1A, 0x95
		}
	},

	// set TE on
	{0x35, 1, {0x00}},

	{0xBF, 4, {0x05, 0x60, 0x02, 0x00}},

	// VCOM//64
	{0xB6, 1, {0x6A}},

	//SET RGB OR BGR
	{0x36, 1, {0x08}},

	//SET RGB OR BGR
	{0xC0, 2, {0x03, 0x94}},

	//SET DSI COMMAND MODE
	{0xC2, 1, {0x08}},

	//SET DSI COMMAND MODE
	{0xC6, 4, {0x35, 0x00, 0x20, 0x04}},

	//SET PANEL
	{0xCC, 1, {0x09}},

	{0xD4, 1, {0x00}},

	{
		0xD5, 23, {
			0x00, 0x01, 0x04, 0x00,
			0x01, 0x67, 0x89, 0xAB,
			0x45, 0xCC, 0xCC, 0xCC,
			0x00, 0x10, 0x54, 0xBA,
			0x98, 0x76, 0xCC, 0xCC,
			0xCC, 0x00, 0x00
		}
	},

	{
		0xD8, 23, {
			0x00, 0x00, 0x05, 0x00,
			0x9A, 0x00, 0x02, 0x95,
			0x01, 0x07, 0x06, 0x00,
			0x08, 0x08, 0x00, 0x1D,
			0x08, 0x08, 0x08, 0x00,
			0x00, 0x00, 0x77
		}
	},

	{
		0xE0, 34, {
			0x00, 0x12, 0x19, 0x33,
			0x36, 0x3F, 0x28, 0x47,
			0x06, 0x0C, 0x0E, 0x12,
			0x14, 0x12, 0x14, 0x12,
			0x1A, 0x00, 0x12, 0x19,
			0x33, 0x36, 0x3F, 0x28,
			0x47, 0x06, 0x0C, 0x0E,
			0x12, 0x14, 0x12, 0x14,
			0x12, 0x1A
		}
	},

	{
		0xE1, 34, {
			0x00, 0x12, 0x19, 0x33,
			0x36, 0x3F, 0x28, 0x47,
			0x06, 0x0C, 0x0E, 0x12,
			0x14, 0x12, 0x14, 0x12,
			0x1A, 0x00, 0x12, 0x19,
			0x33, 0x36, 0x3F, 0x28,
			0x47, 0x06, 0x0C, 0x0E,
			0x12, 0x14, 0x12, 0x14,
			0x12, 0x1A
		}
	},

	{
		0xE2, 34, {
			0x00, 0x12, 0x19, 0x33,
			0x36, 0x3F, 0x28, 0x47,
			0x06, 0x0C, 0x0E, 0x12,
			0x14, 0x12, 0x14, 0x12,
			0x1A, 0x00, 0x12, 0x19,
			0x33, 0x36, 0x3F, 0x28,
			0x47, 0x06, 0x0C, 0x0E,
			0x12, 0x14, 0x12, 0x14,
			0x12, 0x1A
		}
	},

	//SET PIXEL FORMAT
	{0x3A, 1, {0x77}},

	//sleep out
	{0x29, 0, {}},
};


static struct LCM_setting_table lcm_set_window[] = {
	{0x2A, 4, {0x00, 0x00, (FRAME_WIDTH>>8), (FRAME_WIDTH&0xFF)}},
	{0x2B, 4, {0x00, 0x00, (FRAME_HEIGHT>>8), (FRAME_HEIGHT&0xFF)}},
	{REGFLAG_END_OF_TABLE, 0x00, {}}
};


static struct LCM_setting_table lcm_sleep_out_setting[] = {
	// Sleep Out
	{0x11, 0, {}},
	{REGFLAG_DELAY, 120, {}},

	// Display ON
	{0x29, 0, {}},
	{REGFLAG_END_OF_TABLE, 0x00, {}}
};


static struct LCM_setting_table lcm_deep_sleep_mode_in_setting[] = {
	// Sleep Mode On
	{0x10, 0, {}},
	{REGFLAG_DELAY, 120, {}},
	{REGFLAG_END_OF_TABLE, 0x00, {}}
};


static struct LCM_setting_table lcm_backlight_level_setting[] = {
	{0x51, 1, {0xFF}},
	{REGFLAG_END_OF_TABLE, 0x00, {}}
};


static void push_table(struct LCM_setting_table *table, unsigned int count, unsigned char force_update)
{
	unsigned int i;

	for (i = 0; i < count; i++) {

		unsigned cmd;
		cmd = table[i].cmd;

		switch (cmd) {

			case REGFLAG_DELAY :
				MDELAY(table[i].count);
				break;

			case REGFLAG_END_OF_TABLE :
				break;

			default:
				dsi_set_cmdq_V2(cmd, table[i].count, table[i].para_list, force_update);
		}
	}

}


// ---------------------------------------------------------------------------
//  LCM Driver Implementations
// ---------------------------------------------------------------------------

static void lcm_set_util_funcs(const LCM_UTIL_FUNCS *util)
{
	memcpy(&lcm_util, util, sizeof(LCM_UTIL_FUNCS));
}


static void lcm_get_params(LCM_PARAMS *params)
{
	memset(params, 0, sizeof(LCM_PARAMS));

	params->type   = LCM_TYPE_DSI;
	params->width  = FRAME_WIDTH;
	params->height = FRAME_HEIGHT;

	// enable tearing-free
	params->dbi.te_mode                 = LCM_DBI_TE_MODE_VSYNC_ONLY;
	params->dbi.te_edge_polarity        = LCM_POLARITY_RISING;

#if (LCM_DSI_CMD_MODE)
	params->dsi.mode   = CMD_MODE;
	params->dsi.switch_mode = SYNC_PULSE_VDO_MODE;
#else
	params->dsi.mode   = SYNC_PULSE_VDO_MODE;
#endif

	// DSI
	/* Command mode setting */
	params->dsi.LANE_NUM                = LCM_THREE_LANE;
	//The following defined the fomat for data coming from LCD engine.
	params->dsi.data_format.color_order = LCM_COLOR_ORDER_RGB;
	params->dsi.data_format.trans_seq   = LCM_DSI_TRANS_SEQ_MSB_FIRST;
	params->dsi.data_format.padding     = LCM_DSI_PADDING_ON_LSB;
	params->dsi.data_format.format      = LCM_DSI_FORMAT_RGB888;

	// Highly depends on LCD driver capability.
	// Not support in MT6573
	params->dsi.packet_size=256;
	params->dsi.PS=LCM_PACKED_PS_24BIT_RGB888;
#ifndef CONFIG_FPGA_EARLY_PORTING
#if (LCM_DSI_CMD_MODE)
	params->dsi.PLL_CLOCK = 270; //this value must be in MTK suggested table
#else
	params->dsi.PLL_CLOCK = 270; //this value must be in MTK suggested table
#endif
#else
	params->dsi.pll_div1 = 0;
	params->dsi.pll_div2 = 0;
	params->dsi.fbk_div = 0x1;
#endif

	params->dsi.clk_lp_per_line_enable = 0;
	params->dsi.esd_check_enable = 0;
	params->dsi.customization_esd_check_enable = 0;
	params->dsi.lcm_esd_check_table[0].cmd          = 0x53;
	params->dsi.lcm_esd_check_table[0].count        = 1;
	params->dsi.lcm_esd_check_table[0].para_list[0] = 0x24;
}


static void lcm_init(void)
{
	SET_RESET_PIN(1);
	SET_RESET_PIN(0);
	MDELAY(10);
	SET_RESET_PIN(1);
	MDELAY(20);

	push_table(lcm_initialization_setting, sizeof(lcm_initialization_setting) / sizeof(struct LCM_setting_table), 1);
}


static void lcm_suspend(void)
{
	push_table(lcm_deep_sleep_mode_in_setting, sizeof(lcm_deep_sleep_mode_in_setting) / sizeof(struct LCM_setting_table), 1);

}


static void lcm_resume(void)
{
	MDELAY(10);
	lcm_init();
}


static void lcm_update(unsigned int x, unsigned int y,
                       unsigned int width, unsigned int height)
{
	unsigned int x0 = x;
	unsigned int y0 = y;
	unsigned int x1 = x0 + width - 1;
	unsigned int y1 = y0 + height - 1;

	unsigned char x0_MSB = ((x0>>8)&0xFF);
	unsigned char x0_LSB = (x0&0xFF);
	unsigned char x1_MSB = ((x1>>8)&0xFF);
	unsigned char x1_LSB = (x1&0xFF);
	unsigned char y0_MSB = ((y0>>8)&0xFF);
	unsigned char y0_LSB = (y0&0xFF);
	unsigned char y1_MSB = ((y1>>8)&0xFF);
	unsigned char y1_LSB = (y1&0xFF);

	unsigned int data_array[16];

	data_array[0]= 0x00053902;
	data_array[1]= (x1_MSB<<24)|(x0_LSB<<16)|(x0_MSB<<8)|0x2a;
	data_array[2]= (x1_LSB);
	data_array[3]= 0x00053902;
	data_array[4]= (y1_MSB<<24)|(y0_LSB<<16)|(y0_MSB<<8)|0x2b;
	data_array[5]= (y1_LSB);
	data_array[6]= 0x002c3909;

	dsi_set_cmdq(&data_array, 7, 0);

}


static void lcm_setbacklight(unsigned int level)
{
	unsigned int default_level = 145;
	unsigned int mapped_level = 0;

	//for LGE backlight IC mapping table
	if (level > 255)
		level = 255;

	if (level >0)
		mapped_level = default_level+(level)*(255-default_level)/(255);
	else
		mapped_level=0;

	// Refresh value of backlight level.
	lcm_backlight_level_setting[0].para_list[0] = mapped_level;

	push_table(lcm_backlight_level_setting, sizeof(lcm_backlight_level_setting) / sizeof(struct LCM_setting_table), 1);
}


static void lcm_setpwm(unsigned int divider)
{
	// TBD
}


static unsigned int lcm_getpwm(unsigned int divider)
{
	// ref freq = 15MHz, B0h setting 0x80, so 80.6% * freq is pwm_clk;
	// pwm_clk / 255 / 2(lcm_setpwm() 6th params) = pwm_duration = 23706
	unsigned int pwm_clk = 23706 / (1<<divider);
	return pwm_clk;
}
LCM_DRIVER hx8392a_dsi_cmd_3lane_lcm_drv = {
	.name           = "hx8392a_dsi_cmd_3lane",
	.set_util_funcs = lcm_set_util_funcs,
	.get_params     = lcm_get_params,
	.init           = lcm_init,
	.suspend        = lcm_suspend,
	.resume         = lcm_resume,
#if (LCM_DSI_CMD_MODE)
	.set_backlight  = lcm_setbacklight,
	//.set_pwm        = lcm_setpwm,
	//.get_pwm        = lcm_getpwm,
	.update         = lcm_update
#endif
};
